Woven pile fabric.



PATENTED APR. 9, 1907.

G. ZIMEBMANN. WOVEN PILE FABRIC. APPLIUATION FILED Nov UNITED.l sTATEs PATENT oEErcE.

, WOVEN PILE FABRIC.

Specification of Letters Patent.

Patented April 9, 1907.

Application filed November 14, 1905. Serial No.. 287.296.

T0 (LU/ wil/0m) t may concern:

Be it known that I, GEORGE ZIMERMANN, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Woven Pile Fabrics, of which the following is a specification.

The obj ect of my invention is to so weave a pile fabric as to insure the firm tying of the tufts of pile-yarn to the backing fabric.

In the accompanying drawings, Figure 1 Shows an exaggerated section of a piece of pile fabric made in accordance with my invention, the section being taken in the direction of the warp-threads. Fig. 2 is a trans- .verse section of the same or one taken in the direction of the weft-threads. Fig. 3 is a section talenin the direction of the warpthreads and showing the method of weaving the fabric, and Fig. 4Vis a like section showing another method of weaving the same.

In Figs. 1 and 2 of the drawings, l represents successive tufts of pile-warp; 2, weftthreads .interwoven therewith; 3, stuif'er warp-threads, and 4 binding warp-threads.

The weft-threads 2 are disposed in successive sets of three each, and each tuftforming pile warp-thread passes first down, under, and up around the first weft-thread'of the set, then up, over, and around the second or intermediate weft-thread of the set, and then down, under, and up around the third weft-thread of the set. Hence its tendency is when subjected to strain to draw the three threads toward each other, and the harder the pull upon either of the upstanding tufts formed by said warp-thread the tighter will it be bound to the weftthreads of the backing fabric, and the dislodgment of any one of the tufts is difficult to accomplish.

The stuifer warp-threads 3 separate the nit-threads of eachset, there being one of said weft-threads on top of the `stufl'er warpthrcad and the other two beneath the same.

The entire set of three weft-threads 2 is contained Within one and the same Shed of binding warp-threads 4, said warp-threads being shedded only between successive sets of wcft-threads- I--Iencc each set of the latter constitutes a unit and is bound together dicated in Fig. 3, the double web being afterward severed on the line :c at a point midway between the backing fabrics; but the pile-forming warp-threads can be woven over interposed pilewires 5, if desired, as shown, for instance, in Fig. 4, the loops being cut either by the withdrawal of the pile-wires or subsequently.

In producing patterned fabrics in accordance with my invention bythe use of ile warp-yarns of different colors dispose in sets the use of the special stuffer warpthread 3 will not be necessary, as the pile Warp yarn or yarns of`each set not employed in the production of a pile-tuft will iioat between the weft-threads 2 and will thus serve the same purpose as the stuffer warp-threads.

' I claimi 1. A pile fabric having weft-threads in sets of three, disposed one above and two be neath, and each set contained in one and the same shed of binder warp-threads, and pile- .forming warp-threads which pass first down under and up around one o f the outer weftthreads of the set, thence up over and down around the intermediate weft-thread of the set, and thence down under and up around the other outer weft-thread of the set.

2. A pile fabric having weft-threads in sets of three, disposed one above and two beneath an interposed separator warp thread or threads, and each set contained in one and the saine shed of binder warp-threads, and pile-forming warp-threads which pass first down under and up around one of the outer weft-threads of the set, thence up over and down around the intermediate weft-thread of the set, and thence down under and up around the ,other outer weft-thread of the set.

3. A pile fabric having weft-threads in sets of three, disposed one above and two beneath an interposed stuffer warp-thread, independent of the pile-forming warp-threads, and each set contained'in one and the same shed of binder warp-threads, and pile-forming warp-threads which-pass first down under and up around one of the outer weftthreads of the set, thence up over and down around the intermediate weft-thread of the set, and thence down under and up around the other outer weft-thread of the set.

IOO

4. A pile fabric having weft-threads in sets, the threads of each set disposed both alove and bberlov inte'pose sepaijetoi Wirp t ea s o1' t ea an eac set centaine in one and the sarhe shed of binder Warp-` GEORGE ZIMERMANN' threads, and pile-formin Warp-threads Witnesses:

Which engage each thread o the set of Warpi WALTER CHIsM, threads. Jos. H. KLEIN.

In testiinony whereof I have signed my naine to this speeieation 1n the presence oi' 1o two subscribing Witnesses. 

